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Finding the Third Proportional to 2,556.56 and 4,077.84

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Solution

The third proportional to 2,556.56 and 4,077.84 is: 6,504.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,556.56 : 4,077.84 = 4,077.84 : x
  2. Step 2: Convert to fraction form
    2,556.56/4,077.84 = 4,077.84/x
  3. Step 3: Cross multiply
    2,556.56x = 4,077.84 × 4,077.84
  4. Step 4: Simplify right side
    2,556.56x = 16,628,809.65
  5. Step 5: Solve for x
    x = 16,628,809.65/2,556.56
  6. Step 6: Final answer
    x = 6,504.36

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.